"A friend to everybody," said Brancy White, a member of the school's high school football staff. "So to lose somebody like that, the way that we did is devastating. I mean, a breath of fresh air taken out of every day."

Tateo graduated from Skyline, worked at a youth outreach group, and returned as a teacher for the past three years.

A GoFundMe page has been set up to care for his 2-year-old daughter. Click here if you'd like to help.